
His sister literally stated she was jealous of him and wanted to use him being gay as leverage that doesn’t even make sense and think about how he feels he’s expected to do so much he doesn’t get a break he has to hide himself from who he really and again his sister does nothing but shame and blame him for it (● ̄(エ) ̄●)

He does have consideration about his family. He cares about everyone and I don't think he did anything wrong. He had the courage to come out to his sister and she shames him for it. She is jealous and out of all people she is the non considerate one. Also, isn't he still figuring out what to do with his life ? He is not like his sister lol.

He doesn't seem aware of his family's emotions at all! Hia mother didn't want to go out of bed and he didn't even show any worry. And did he need to come out to his sister? Especially when he doesn't show any sign of trying to understand what she's going through as well. I mean, she is far from being right, but for me it seemed like he was just trying to make himself feel better.

??????????????? Why should he be concerned about how being gay makes his sister feel when it should be a non issue and it's his identity?? If him falling in love with guys stresses his sister out that's her problem to deal with not his. Same with his mom. It's their homophobia they need to figure out and deal with.

I know you didn’t ask, but my personal opinion, keke.
I do think Jun is quite ignorant, he’s subconsciously neglecting the clear, and quite frankly disgusting misogyny taking place in his household.
But, I wouldn’t call him a dickhead, I’d call him oddly naive and ignorant, but definitely not a dickhead. He wanted support in a time of his own need, and he came out to his sister, because what? He’s naive and ignorant as shit, he couldn’t see what his sister was going through, she was stressed, but he still dropped this massive weight on her. And I doubt it’s because he intended to pain her, but because he truly trusted her. Which is again, pretty fucking naive.
Of course, him coming out to his sister isn’t wrong, he really wants a relationship with his sister, and nothing wrong with that. I’m rooting for their relationship to flourish, maybe they’ll over come their differences and get some sweet ol’ family love.
Let’s be honest, everyone in this series has been thinking of themselves and only themselves, which is pretty fucking realistic. Jun may not be the brightest, and quite ignorant, but not a dickhead, as I’m pretty sure he has no clue what it is that he’s doing.
Plus, isn’t he in college? Of course he’s an ignorant idiot, he’s young as shit.
Jesus shit, I said ignorant and naive a lot.

Jun's mother won't talk to him about it, so what does he know about her feeling down ? But I don't blame her for trying to sort things out. And to me it looked like he was in his room all day after the argument with his sister. He said that "he wanted to disappear" so he was down himself.
What's wrong with coming out to your family ? He felt that he could trust her but she went off on him. Because of her trauma and acts like it's his fault he has favoritism. Or something like that. She's the same one telling him that "if its so painful, just cure yourself by dating girls. That is so childish and is kinda saying him being gay is a choice. She has no right to say that to him.
Wow, talk about having no taste in men, Jun only likes assholes. But I guess it makes sense, he is a bit of one as well.